回複:讓人煩惱的禮金卡問題

For first time, make a guess $1000/(1+10%)~909. Next time, take another factor of 1/(1+10%), etc.

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回複:回複:讓人煩惱的禮金卡問題 -火球魔法- 給 火球魔法 發送悄悄話 火球魔法 的博客首頁 (160 bytes) () 01/06/2009 postreply 01:54:19

回複:回複:回複:讓人煩惱的禮金卡問題 -justatry- 給 justatry 發送悄悄話 (88 bytes) () 01/06/2009 postreply 21:45:31

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